Microsoft to Retire Exchange Web Services API, Urges Migration to Microsoft Graph by 2026

A Transition to Microsoft Graph: To ensure a seamless transition, Microsoft advises all users to migrate to Microsoft Graph. Despite some differences, Microsoft Graph, introduced in 2015, connects various services and devices similarly to EWS. One notable distinction is that Microsoft Graph APIs are REST-based, offering advantages such as faster JSON serialization and reduced network usage. Microsoft encourages users to make the shift to Microsoft Graph to access Exchange Online data, despite acknowledging certain feature gaps between the two.